Flowserve Corporation
US ˙ NYSE ˙ US34354P1057

SecurityFLS / Flowserve Corporation
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership940,750 shares
Latest Disclosed Value $ 69,154,533
Qube Research & Technologies Ltd reports 8.73% increase in ownership of FLS / Flowserve Corporation

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 940,750 shares of Flowserve Corporation (US:FLS) valued at $69,154,532 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 865,254 shares of Flowserve Corporation. This represents a change in shares of 8.73% during the quarter. The current value of the position is $70,960,772 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F FLOWSERVE COM 34354P105 940,750 75,496 8.73 69,155 15.20 0.0769
2026-02-17 2025-12-31 13F FLOWSERVE COM 34354P105 865,254 358,583 70.77 60,031 122.96 0.0610
2025-11-14 2025-09-30 13F FLOWSERVE COM 34354P105 506,671 65,529 14.85 26,924 16.59 0.0278
2025-08-14 2025-06-30 13F FLOWSERVE COM 34354P105 441,142 -753,965 -63.09 23,094 -60.44 0.0235
2025-05-15 2025-03-31 13F FLOWSERVE COM 34354P105 1,195,107 666,606 126.13 58,369 92.01 0.0677
2025-02-14 2024-12-31 13F FLOWSERVE COM 34354P105 528,501 -119,120 -18.39 30,399 -9.19 0.0399
2024-11-14 2024-09-30 13F FLOWSERVE COM 34354P105 647,621 -47,458 -6.83 33,476 0.13 0.0493
2024-08-14 2024-06-30 13F FLOWSERVE COM 34354P105 695,079 108,438 18.48 33,433 24.76 0.0528
2024-05-14 2024-03-31 13F FLOWSERVE COM 34354P105 586,641 343,183 140.96 26,798 167.04 0.0425
2024-02-13 2023-12-31 13F FLOWSERVE COM 34354P105 243,458 237,551 4,021.52 10,035 4,188.46 0.0195
2023-11-13 2023-09-30 13F FLOWSERVE COM 34354P105 5,907 -17,150 -74.38 235 -72.66 0.0006
2023-08-14 2023-06-30 13F FLOWSERVE COM 34354P105 23,057 23,057 857 0.0031
2022-05-09 2022-03-31 13F FLOWSERVE COM 34354P105 0 -143,289 -100.00 0 -100.00
2022-02-10 2021-12-31 13F/A-1 FLOWSERVE COM 34354P105 143,289 114,040 389.89 4,385 332.45 0.0338
2022-02-01 2021-12-31 13F FLOWSERVE COM 34354P105 143,289 114,040 4,385 0.0339
2021-11-12 2021-09-30 13F FLOWSERVE COM 34354P105 29,249 -13,058 -30.86 1,014 -40.56 0.0127
2021-08-13 2021-06-30 13F FLOWSERVE COM 34354P105 42,307 -85,494 -66.90 1,706 -65.60 0.0194
2021-05-14 2021-03-31 13F FLOWSERVE COM 34354P105 127,801 127,801 4,960 0.0787
2019-08-02 2019-06-30 13F FLOWSERVE COM 34354P105 0 -6,736 -100.00 0 -100.00
2019-05-15 2019-03-31 13F FLOWSERVE COM 34354P105 6,736 6,736 304 0.0401
2019-02-14 2018-12-31 13F FLOWSERVE COM 34354P105 0 -2,715 -100.00 0 -100.00
2018-11-14 2018-09-30 13F FLOWSERVE COM 34354P105 2,715 949 53.74 148 108.45 0.0197
2018-08-15 2018-06-30 13F/A-1 FLOWSERVE COM 34354P105 1,766 1,766 71 0.0448
2018-08-14 2018-06-30 13F FLOWSERVE COM 34354P105 1,766 71 0.0448
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.